地理学报 ›› 2011, Vol. 66 ›› Issue (7): 867-884.doi: 10.11821/xb201107001

• 气候变化 •    下一篇

中国第四纪冰川演化序列与MIS对比研究的新进展

赵井东1, 施雅风1, 王杰2   

  1. 1. 中国科学院寒区旱区环境与工程研究所冰冻圈科学国家重点实验室, 兰州 730000;
    2. 兰州大学西部环境教育部重点实验室, 兰州 730000
  • 收稿日期:2010-12-20 修回日期:2011-05-30 出版日期:2011-07-20 发布日期:2011-09-07
  • 作者简介:赵井东(1976-), 男, 江苏沭阳人, 博士, 副研究员, 主要从事第四纪冰川与全球变化研究.E-mail: jdzhao@lzb.ac.cn
  • 基金资助:

    国家自然科学基金项目(41071010; 40801031);中国科学院知识创新工程重要方向性项目(KZCX2-EW-QN304); 科技部科技基础性工作专项项目(2006FY110200)

Comparison between Quaternary Glaciations in China and the Marine Oxygen Isotope Stage (MIS): An Improved Schema

ZHAO Jingdong1, SHI Yafeng1, WANG Jie2   

  1. 1. State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, CAS, Lanzhou 730000, China;
    2. Key Laboratory of Western China's Environmental Systems (Ministry of Education), Lanzhou University, Lanzhou 730000, China
  • Received:2010-12-20 Revised:2011-05-30 Online:2011-07-20 Published:2011-09-07
  • Supported by:

    National Natural Science Foundation of China, No.41071010; No.40801031; Knowledge Innovation Project of Chinese Academy of Sciences, No.KZCX2-EW-QN304; Program of the Ministry of Science and Technology of China, No.2006FY110200

摘要: 近年来,随着多种可对冰川地形进行直接定年的测年技术的发展与应用,中国第四纪冰川研究取得了新进展,较为突出的是获得了大量与地貌地层关系相符的年代学资料、建立了冰川演化若干典型范例以及进一步确立了青藏高原构造隆升与冰川发育的耦合关系。中国第四纪冰川演化序列与海洋氧同位素阶段(Marine Oxygen Isotope Stage,MIS) 比较经历了2000 年、2002 年两次立案与改进。笔者基于近年来新测得的年代学数据、已建立的冰川演化序列以及青藏高原隆升与冰川发育的耦合关系等新的研究资料,提出了中国冰期与海洋氧同位素阶段比较的2011 年改进方案,包括近百万年冰川变化的15 个特征时段及其对应的时间与中国冰期名称等信息。

关键词: 第四纪冰川, 中国冰期, 海洋氧同位素阶段(MIS), 中国西部, 中国东部

Abstract: In the past two decades, dating techniques, including cosmogenic radionuclide (CRN) or terrestrial in situ cosmogenic nuclides (TCN), optically stimulated luminescence (OSL), electron spin resonance (ESR), which can potentially and directly determine the ages of glacial landforms and sediments have been refined and widely applied. These techniques in combination with other dating methods, such as lichenometry, 14C and thermoluminescence (TL) dating, have promoted further understanding of Quaternary glaciations in China, and some new progress has been achieved. For example, abundant dating data, which are consistent with the stratigraphy and geomorphology have been determined; glacial sequences constrained by numerical ages in the Qinghai-Xizang Plateau and bordering mountains have been obtained; the coupling relationship between the uplift of the Qinghai-Xizang Plateau and the glacier evolution in Quaternary has been identified. An improved comparative schema between Quaternary glaciations and marine oxygen isotope stage (MIS) has been proposed on the basis of the available data. The improved comparative schema includes 15 special stages and sub-stages during the last 1 million years. Information, such as time (ka), MIS, Chinese glaciations are accessible. The authors expect more comments and suggestions on the improved schema.

Key words: Quaternary glaciation, Chinese glaciations, marine oxygen isotope stage (MIS), western China, eastern China